/* * $Id$ */ /* * Harbour Project source code: * Text file browser class * * Copyright 2001 Maurilio Longo * www - http://www.harbour-project.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this software; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/). * * As a special exception, the Harbour Project gives permission for * additional uses of the text contained in its release of Harbour. * * The exception is that, if you link the Harbour libraries with other * files to produce an executable, this does not by itself cause the * resulting executable to be covered by the GNU General Public License. * Your use of that executable is in no way restricted on account of * linking the Harbour library code into it. * * This exception does not however invalidate any other reasons why * the executable file might be covered by the GNU General Public License. * * This exception applies only to the code released by the Harbour * Project under the name Harbour. If you copy code from other * Harbour Project or Free Software Foundation releases into a copy of * Harbour, as the General Public License permits, the exception does * not apply to the code that you add in this way. To avoid misleading * anyone as to the status of such modified files, you must delete * this exception notice from them. * * If you write modifications of your own for Harbour, it is your choice * whether to permit this exception to apply to your modifications. * If you do not wish that, delete this exception notice. * */ #include "hbclass.ch" #include "common.ch" #include "fileio.ch" #include "inkey.ch" // Color definitions and positions inside ::cColorSpec #define CLR_CODE 0 // color of code #define CLR_CURSOR 1 // color of highlighted line (the line to be executed) #define CLR_BKPT 2 // color of breakpoint line #define CLR_HIBKPT 3 // color of highlighted breakpoint line CREATE CLASS HBBrwText INHERIT HBEditor VAR cFileName // the name of the browsed file VAR nActiveLine INIT 1 // Active line inside Code Window (the line to be executed) VAR aBreakPoints INIT {} // Array with line numbers of active Break Points VAR lLineNumbers // If .T. source code lines are preceded by their number ACCESS colorSpec INLINE ::cColorSpec ASSIGN colorSpec( cClr ) INLINE ::cColorSpec := cClr METHOD New( nTop, nLeft, nBottom, nRight, cFileName, cColor ) METHOD GoTop() // Methods available on a standard TBrowse, needed to handle a HBEditor like a TBrowse METHOD GoBottom() METHOD Up() METHOD Down() METHOD Left() METHOD Right() METHOD End() METHOD PageUp() METHOD PageDown() METHOD RefreshAll() METHOD RefreshCurrent() METHOD ForceStable() INLINE NIL METHOD GotoLine( n ) // Moves active line cursor METHOD SetActiveLine( n ) // Sets the line to be executed METHOD GetLine( nRow ) // Redefine HBEditor method to add line number METHOD LineColor( nRow ) // Redefine HBEditor method to handle line coloring METHOD ToggleBreakPoint( nRow, lSet ) // if lSet is .T. there is a BreakPoint active at nRow, if lSet is .F. BreakPoint at nRow has to be removed METHOD Search( cString, lCaseSensitive, nMode ) // 0 from Begining to end, 1 Forward, 2 Backwards METHOD LoadFile( cFileName ) ENDCLASS METHOD New( nTop, nLeft, nBottom, nRight, cFileName, cColor, lLineNumbers ) CLASS HBBrwText DEFAULT cColor TO SetColor() DEFAULT lLineNumbers TO .T. ::cFileName := cFileName ::lLineNumbers := lLineNumbers ::Super:New( "", nTop, nLeft, nBottom, nRight, .T. ) ::Super:SetColor( cColor ) ::Super:LoadFile( cFileName ) RETURN Self METHOD LoadFile( cFileName ) CLASS HBBrwText ::Super:LoadFile( cFileName ) RETURN Self METHOD GoTop() CLASS HBBrwText ::MoveCursor( K_CTRL_PGUP ) RETURN Self METHOD GoBottom() CLASS HBBrwText ::MoveCursor( K_CTRL_PGDN ) RETURN Self METHOD Up() CLASS HBBrwText ::MoveCursor( K_UP ) RETURN Self METHOD Left() CLASS HBBrwText ::MoveCursor( K_LEFT ) RETURN Self METHOD Right() CLASS HBBrwText ::MoveCursor( K_RIGHT ) RETURN Self METHOD End() CLASS HBBrwText ::MoveCursor( K_END ) RETURN Self METHOD Down() CLASS HBBrwText ::MoveCursor( K_DOWN ) RETURN Self METHOD PageUp() CLASS HBBrwText ::MoveCursor( K_PGUP ) RETURN Self METHOD PageDown() CLASS HBBrwText ::MoveCursor( K_PGDN ) RETURN Self METHOD RefreshAll() CLASS HBBrwText ::display() RETURN Self METHOD RefreshCurrent() CLASS HBBrwText ::RefreshLine() return Self METHOD SetActiveLine( n ) CLASS HBBrwText ::nActiveLine := n ::display() RETURN Self METHOD GotoLine( n ) CLASS HBBrwText ::Super:GotoLine( n ) RETURN Self METHOD GetLine( nRow ) CLASS HBBrwText RETURN iif( ::lLineNumbers, AllTrim( Str( nRow ) ) + ": ", "" ) + ::Super:GetLine( nRow ) METHOD LineColor( nRow ) CLASS HBBrwText LOCAL lHilited := ( nRow == ::nActiveLine ) LOCAL lBreak := AScan( ::aBreakPoints, nRow ) > 0 LOCAL nIndex := CLR_CODE IF lHilited nIndex += CLR_CURSOR ENDIF IF lBreak nIndex += CLR_BKPT ENDIF RETURN hb_ColorIndex( ::cColorSpec, nIndex ) METHOD ToggleBreakPoint( nRow, lSet ) CLASS HBBrwText LOCAL nAt := AScan( ::aBreakPoints, nRow ) IF lSet // add it only if not present IF nAt == 0 AAdd( ::aBreakPoints, nRow ) ENDIF ELSEIF nAt != 0 ADel( ::aBreakPoints, nAt ) ASize( ::aBreakPoints, Len( ::aBreakPoints ) - 1 ) ENDIF RETURN Self METHOD Search( cString, lCaseSensitive, nMode ) CLASS HBBrwText LOCAL nFrom LOCAL nTo LOCAL nStep LOCAL nFor LOCAL lFound := .F. DEFAULT lCaseSensitive TO .F. DEFAULT nMode TO 0 IF !lCaseSensitive cString := Upper( cString ) ENDIF DO CASE CASE nMode == 0 // From Top nFrom := 1 nTo := ::naTextLen nStep := 1 CASE nMode == 1 // Forward nFrom := Min( ::nRow + 1, ::naTextLen ) nTo := ::naTextLen nStep := 1 CASE nMode == 2 // Backward nFrom := Max( ::nRow - 1, 1 ) nTo := 1 nStep := -1 ENDCASE FOR nFor := nFrom TO nTo STEP nStep IF cString $ iif( lCaseSensitive, ::GetLine( nFor ), Upper( ::GetLine( nFor ) ) ) lFound := .T. ::GotoLine( nFor ) EXIT ENDIF NEXT RETURN lFound